![]() ![]() Once the dredging is finished, the sediments then settle back to the bottom of the pond, and much of the dredging benefits are lost. This kills off most of the existing aquatic life and leaves the pond a black, mucky mess. If the pond is dredged wet, as soon as the dredge hits the sediments, the sediments are so fine they explode into the water column releasing all the toxic gases and nutrients. ![]() This means all aquatic life must either be relocated or killed off. ![]() Mechanical dredging is most effective when the pond has been completely drained and the bottom sediments have had time to dry. ![]() This can cause dense plants like weed & algae to over-populate the area, smothering other plant & animal-life, & leading to oxygen deprivation.The Old Solution To Pond Cleaning– MECHANICAL DREDGING Dredging helps remediate eutrophication which is an excess of nutrients in the water due to runoff. Sediment and muck accumulation will occur naturally over time, and if unattended can adversely affect recreational activities such as kayaking, fishing, or swimming. These pollutants are introduced to waterways from point of sources such as sewer overflows, municipal and industrial discharges, and spills or nature or maybe introduced from nonpoint sources such as surface runoff and atmospheric deposition.ĭredging is essential in keeping varying bodies of water clean for both human & aquatic life. This environmental dredging is often necessary because sediments in and around cities and industrial areas are frequently contaminated with a variety of pollutants. Dredging is also performed to reduce the exposure of fish, wildlife, and people to contaminants and to prevent the spread of contaminants to other areas of the water body. It is a routine necessity in waterways around the world because sedimentation-the natural process of sand and silt washing downstream-gradually fills ponds, lakes, and waterways.ĭredging often is focused on maintaining or increasing the depth of any body of water. This material must be periodically removed by dredging.ĭredging is the removal of sediments and debris from the bottom of lakes, rivers, harbors, and other water bodies. As sand and silt wash downstream, sedimentation gradually fill ponds and lakes. ![]()
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